Three problems related to other fuel system have been reported for the 2003 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Highlander based on all problems reported for the 2003 Highlander.
Needed to have a total engine rebuild due to faulty head bolts that stripped and allowed coolant to enter the engine and burn. Lucky-I guess-that I acted quickly so as to avert catalytic converter issues or sensors getting damaged by burning coolant. I also avoided the total loss of antifreeze and the resulting damage &/or inconvenience that thousands of others had. Still, a huge inconvenience and huge $5425. 82 cost due to manufacturer's defect: weak metal that couldn't withstand the torque/pull on them. . . Perhaps the threading played a part. I only know that 1000s upon 1000s of people suffered the same issue from Toyota on this engine in several years/models. There should be a recall. There should be compensation.
Strong odor of gas fumes when car is parked.
Car accelerated and chased into house in Nov 20011. Car accelerated in parking lot Dec. 2012. No damage this time but in 2011 there was 14,000 $ damage to house and car. Car was checked out at Toyota twice ,no problem found. Wife will never drive the car again. She is infear of hurting someone.
| Other Fuel System problems | |
| Other Fuel System Fuel Gauge problems |